1045809580 has 12 divisors (see below), whose sum is σ = 2196200160. Its totient is φ = 418323824.

The previous prime is 1045809539. The next prime is 1045809581. The reversal of 1045809580 is 859085401.

It is not an unprimeable number, because it can be changed into a prime (1045809581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26145220 + ... + 26145259.

It is an arithmetic number, because the mean of its divisors is an integer number (183016680).

Almost surely, 2^1045809580 is an apocalyptic number.

1045809580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045809580 is an abundant number, since it is smaller than the sum of its proper divisors (1150390580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045809580 is a wasteful number, since it uses less digits than its factorization.

1045809580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52290488 (or 52290486 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 1045809580 is about 32338.9792665137. The cubic root of 1045809580 is about 1015.0424501162.

The spelling of 1045809580 in words is "one billion, forty-five million, eight hundred nine thousand, five hundred eighty".